Maker: refers to the investor who places an order at a specified price, but does not immediately match it with other orders in the order book. Instead, the order is displaced in the order list and waits to be matched with the counterparty's order.

Taker: refers to the investor who places an order at a specified price (there is already an order with the same price in the order book) and immediately matches it with other orders in the order book.

If you meet the 30-day trading volume requirement, you can get a VIP tier upgrade and keep it for 60 days without downgrading.

You can get a VIP tier upgrade as long as you meet the account assets holding requirement, but will not keep it if the value of your account assets fails to meet the requirements later.

The VIP system is updated at random once every 24 hours, and users can have their VIP tier upgraded if they meet the relevant requirements.